Power-driven railway truck



Jan. 8, 1929.'

W. J. HAGMAN PowRR DRIVER RAILWAY TRUCK 5 Sheets-Sheet 1 Filed June 24,1925 .NNN

va-n. s, 1929. 1,698,588-

w. J. HAGMAN l K- v POWER DRIvEN RAIIILWAY TRUCK Filed June 24, 1925 5sheds-sheet 2 Jan. 8, 1929.

' W. J. HAGMAN POWER DRIVEN RAILWAY TRUCK 5 Sheets-Sheet Filed June 24,1925 Jan. 8, 1929. 1,698,588

w. J. HAGMAN PowER DRIVEN RAILWAY TRUCK Filed June 24, 1925 5vSheets-Sheet 4 v WZZawwcfHdCgm/ww Patented dan. 8, 1929a WILLIAM J.Heisman, or maininerenteI 1 niinsxrairl-inrit.v

POWER-DRLVEN RAILWAY TRUCK.

Application filed June 24, 1925. Serial No. 39,353.

My inventionv relates to driving mechanisms, and it has particularrelation to such mechanisms as are applicable to railway trucks.

One object of my invention is to provide a simple efficient drive fortrucks, which is characterized by the absence of universal joints andcomplicated parts; by the ease oi' repair; and by its adaptability topresentday car trucks without necessitating material alterations in thesame.

Another object of my invention is to provide means wherebythe thrustofthev driving element on the truck and car structure may be substantiallyneutralized. j

A further robject of my invention is to provide means whereby a properworking relation may be insured 'between the power device and the truckstructure as the latter swivels relative thereto.

With thesel and other objects andvapplications in mind7 my inventionfurther consists in the details of construction and operation andarrangement, hereinafter described and claimed and illustrated in theaccompanying drawings, wherein y Fig. 1 is a detail side elevationalview of a car body and supporting truck embodying my invention; Y

Fig. 2 is a horizontalsectional view taken on the line Il-H or" Fig. l;l

Figs. 3 and 4 are detail transverse sectional views taken on the linesIII-IH and IV-[V, respectively7 of Fig. 1;

Fig. 5 is a similar view taken on the line V-VoiFigz2;

6 is a fragmentary sectional'vie-w of the neutralizing link andsupporting bearing, the sectional plane beingtaken on the line Vl-VI ofFig. 2;

F ig. 7 is a similar view of the connecting rod and bearing, the.sectional plane being taken onv the lineVH-VII of Fig. 2;`

Fig. 8 isl an elevational view'ofl a modification, wherein the prinjiarysource of power Ais a gas engine.; y

F 9 is a detail elevational view, partially in section, of the slidablegear box of Fig. 8 and mechanism directly connected therewith;

Fig. 10 is a plan view oi' the structure of Fig. 9; l

Fig. 11 is a side elevational view, partially in section, of thestructure of Fig. 10;

Fig. 12 is a transverse sectional view taken on the .line XPXH ont Fig.9; and

Fig. 13 is a view similar to Fig. 8, but showing a slightlymodifiedconstruction.

Referring to Figs. 1' to 7, inclusive, a truck 1 of conventional designis mounted Onaxles 2 and 3 having pairs of wheels 4 and 55 respectively.The ends of the axles 2 and 3 are provided with cranks 67 and8-9respectively. The cranks 6--8 and 7 9 may be respectively connected bysets of side. bars 11 `and 12 which are journaled on pins 13 extendingfrom said cranks. The side bars 11 and 12 may 'be driven bya pair ofpower devices l14 and 15 which, for purposes of illustration, may taketheform ofst'eam engines. Since the power devices 14 and 15 aresubstantiallyidentical in construction, the former only will behereinafter Idescribed'in detail. y l.

rlhe power device 14l comprisesy a casting 16, a lower portion of whichisformed into 'a cylinder 17' and a valve chest 18. The lat- 'tcr isrespectively connected through flexible piping 19 and 21 to a Source ofsteam and to an exhaust port (not shown). The flexibility ot' the piping19 and 21 eliminates the necessity for the usual universal jointswiththeir attendant disadvantages. An upper portion 22 of the casting 16is provided with spaced i shoulders 23 and 24 (Fig. 3) which slidably yengage'shoulders 25 and 26,1respectively7 ofka ing plates 28 and 29 tobeams 31 and 32. A second pair of beams 33 and 34 in. cooperation withthe supporting frame 27 serves to further support the power device 14.The pairs v frame 27 that is secured bylbolts and clampof beams 31-.32and 33-34 are so mounted on a base portion 36 of a car bod'y37 ofcustomary design, that said power device 14 may be 'moved longitudinallythereof. f The car body 37 and the truck are operatively associated bymeansoi' a pivot pin 38, whereby the `truck 1 may swivel with respectVthereto. Y l A piston rod 39 extending from the'cylinder 17 is securedto a cross-head'41 which is slidably mounted on shoulders 42-.42 (Fig.4) provided by the casting 16. One end of the cross-head 41 islbiiurcated and provided with a pivot pin'43 for a substantiallyhorizontally positioned connecting rody 44, the opposite end ot' whichis mounted on a pin 45 of a horizontally rotatable crank disk 46.

The connectinglrod 44 and crank disk 46 are thus operativeA in theswivelingplanel of the truck 1. When the truck 1 lain ination there n sfor this slight` movement by a bearing of they is a slight relativemovement between the connecting rod 44 and the pins 43 and 45 due to thevibration of the truck 1. 1n accordance with my invention, provision ismade general form shown in Fig. 7, wherein the pin 43 is provided with aflange 47 which fits in a recess 48 formed in a base 49 ot a main recess51, the latter being` in a lower arm 52 vof the bii'urcated portion ofthe cross-head 41.

An upper end 53 ot the pin 43 is of reduced diameter forming a shoulder54 which engages an upper arm 55 of said bifurcated y cross-headportion. Y Intermediate the arms 52 and 55 is mounted a sleeve 56 havinga spherical outer surface 57 which slidabl enOaOes i D CJ complementarysurfaces 58 and 59 of opposite blocks 61 and 62.- Tlie former block isprovided with a. shoulder 63 which engages a recess 64 in 'an endportion 65 of the connecting y rod 44. The end portion 65 as well asthev bearing blocks 61 and 62 may be secured t-ogether by bolts 66. Awasher 67 may be interposed between the base 49 of the recess 51 andbearing.

lnecting rod 44.

a flared portion 68olf the sleeve 56. The remaining end of theconnecting rod 44 is mounted on'the crank pin 45 with a similar The`above construction thus permits a slight rocking movement of theconlrod 39 causes 'the steam and exhaust pipes 19. andk21, respectively,to be .connected to the cylinder 17 in the usual manner. y

f-.As shown in Fig. 5, a housing 79 is mounted `on .atransverselyextending strap portion 81 of the truck 1, and serves to enclosebevelgear-wheels 82 and 83. The bevel gear-wheel 82 is mounted on aklower end of a vertical shaft section 84, an upper end 85 of which issecured to the crank disk 46.V A portion 86 A,of the shatt84intermediate the bevel gearwheel 82 andthe crank disk 86 is journaled inabearing 87 formed by the housing79.

The shaft section. 84 may be mounted on a thrust bearing 88 of usualdesign in the base of the housing 79. Anoil groove 89 is formedintermediate the crank disk 46 and the rupper side of the housing`79by`means cfa flange 91 which extends up into` an annular recess 92m theadjacent side' of the crank disk 46.

The' bevel-gear-wheel 83 is mounted in the housing 79 onthe inner end ofa horizontal shaft section 93, which is journaled in the housing 79 at94. An outer end Vportion 95 of the horizontal shaft section 93 ismounted in a bearing 96 carried on one side 97 of the truck 1. A crank98 is secured to a. projecting end portion 99 oit the shaft section 93,

and as particularly shown in Fig. 2, a crank pin 101 isproje-ctedthereirom so as vto extend into an aperture 102 in a block 108slidably mountedfor vertical movement in a slot 104 formed in the sidebar 11.

The block 103 may be resiliently centered by springs 105 and 106 whichengage opposite races ot said block, the spring 106 being positioned ina recess 107 in the lower part of side bar 11. The upper spring 105extends into a recess 108 formed. in a retaining cap screw 109 adaptedto the upper part of the side bar 11, said upper part` being bored andthreaded to receive the cap screw 109, whereby an adjustable torce maybe exerted on the springs 105 and 106. When the power devices 14 and 15are runningidly and the truck 1 is being carriedk along by the momentumot the parts, the springs 105 and 106 assure the passage. of the crankpin 101 over the dead center in the proper direction.` rthe springs 105and 106 valso serve to maintain the side bar 11 in resilient engagementwith the block 103, thereby eliminating undesirable shocks andvibration.

My invention further contemplates means, whereby the thrust of the powerdevice. 14 .on the truck 1 may be neutralized and whereby a correctoperating relation between said power device `and said truck may also bemaintained upon the swivelingof the truck. One method of accomplishingthis desired result is illustrated in the drawing, wherein aneutralizing link 111 has the opposite ends thereof pivotaly supportedin vbearings'112 and 113. The bearing 112 is carried by the end portion78 of the power device, main casting 16 and the bearing 113 is mountedon a supporting member 114 carried by the truck 1. l

The bearing 113 ot which bearing 112 is a duplication is disclosed indetail in 6,

wherein a central bearing pin 115 is provided with a supporting flange116 at one end httingwithin a recess 117 in the supporting structure.The pin 115 is provided with a curvedouter surface 118 which engaged bya bushing- 119 iitting within an aperture 121 in the end portion ot thecompensating link'Y 111. The compensating link 111 maybe retained inposition on the pin by means oi a clamping plate 122 and nut 123 on. theupper end thereof. Byv reason oit this construction, a slight relativemovement is permitted between the compensating link 111 and the pin 115,whereby the vibration of the truck 1 may not be transferred'to the carbody 37 through the compensating link 111.

The Vsupporting member 114 for the bearing 113 is mounted on thetransverse portion 81 of the truck 1, so as to be eccentric with respectto the pivot bolt 38. v As a result, when [transmitted tothe side' bar12.

' and 5, whereby the force' of the compensating link 111 may be absorbedequally for all oper-A ating/positions of the truck 1.

The power device 15 is operatively associated with the opposite side bar12 through mechanism 124 which is substantially identical to thatinterconnecting the power device 14 and the side bar 11. A compensatinglink 125 isy also employed for the same purposes as the link 111. Thecrank 98 for driving the sidebar 11 and a crank 126'for driving thevside bar 12 are disposed in 90 relation.

When a main control rod 127 for the valve gear 76 is actuated so as tocause the passage ofsteam from the pipe 19 to the cylinder 17 thecross-head 41 is reciprocated inthe usual mannen As a result, power istransmitted therefromv to the wheel axle 2 through the connecting rod44, crank ldisk 46, shaft sections 36 and 93, crank 93, side bar 11,'and crank 6. Inasmuch as the control rod 127 is also connected to thevalve gear (not shown) of the power device V15, power is similarly Asnoted above, the thrust of theconnecting rod 44 on the truck 1 and thecasting 16 incident to the. operation Vof the power'device 14 isneutralized by t-he link 111, and the link 125 performs the samefunction for the power device 15. Moreover, when the car body 37traverses a curve, the resulting swiveling of the truck 1 relative tothe power apparatus 14' tends to cause the working relation therebetweento vary, but this is also avoided by the compensating link 111, and thelink 125 performs the same Afunction for the power apparatus 15. 1n somecases, it may be more desirable to employ gas instead of steam asamotive fluid. rEhe application of my invention to such motive fluid isillustrated in Figs. 8 to '12, inclusive, wherein a gas engine 129 ismounted .on af forward end 131 of a car body 132. A transmission boX 133'of usual design is pivotally mounted on bearings 134 and 135,

which respectively support shaft sections 136 and 137. A driving shaft138 extends between the gas engine 129 and the transmission box 133.

T he shaft section 136 is connected through a gear boi; or soy-calledpower. device 139 with a crank disk 141 corresponding to the crank disk46 of Fig. 1. rlhe crank disk 141 may be mounted on a swiveling truck142 and it is connected with a side bar 143, as in the precedingfigures. The power'apparatus 139 comprises a casing 144, which ismounted for longitudinal movement in yways 145 on the car body 132. Adependingport-ion 146 affords a bearing for a vertical shaft 147 thelower end of which carries a crank disk 148L and pin 149. A connectingrod 151 has one end thereof mounted onthepin 149 by means of a bearing152 which is designed to permit a slight relative movement between saidpin 149andsaid connecting rod 15.1. Theopposite end of the connectingrod 151 is mounted on a crank pin 153 by means of a similarbear- I ing154..

The upper end of the vertical shaft 147 carries a bevel gear-wheel 155which is adapted to mesh successively with bevel gear-wheels 156 and157. The bevel gear-wheels 156 and 157 are mounted on an inner end158'0f thel shaft 136 and spaced bya sleeve 159. Bearings 161 and 162serve to support the'shaft end portion 153 immediately adjacent to thebevel gear-wheels 156 and 157, respectively, said bearings being mountedon a cover member 163 slidably mounted on the casing 144.

A hand wheel'164 is mounted on a shaft 165 which is jcurnaled inbearings 166 and 167 carried by the cover member 163 and it is providedwith a threaded 'portion 168 which. engages a nut portion 169- of saidcover member 163. Collars 171 and 172 `are spaced on opposite sides ofthe nut portion 169, so'that when the hand wheel 164 is turned in onedirection, the cover member 163 is actuated to cause the bevelgear-wheel 156 to mesh with the bevel gear-wheel 155. W'hen thefhandwheel 164 is turned in the opposite direction, the bevel vgear-wheel'157 is carried tomesh with the main-bevel gear-wheel155. Thus, thedirection of rotation of the shaft 147 may be controlled and hence thedirection of movement of the truck 142. l

VWhen it is desirable rto control substantially simultaneously thedirection of operation of the shaft section 147 of the power device 139and a corresponding shaft section 173 of a powerdevice 174 (Fig. 8), theshaft 165 is splined at 17 5 to a shaft 176 which is adapted to move acover member 177 and thereby control the direction of operation of theshaft 173 in the manner described alcove for the power device 139.v Thesplined connection 175 between the shaft sections 165 and 176 permitssuch relative movement Vbetween the v slidable power devicesv 139and'174 as may obtain when the truck 142 swivels with respect thereto. l

The vertical shaft 173 is similarly associated with a side bar on theopposite side of the truck 142, but in 90o relation thereto. As will beVapparent, by connecting eachpower vdevice to one side only of the truck142. the

lost mot-ion ofeach unit isabsorbed andI this isalso true forthestructure of the preceding i CII end is connected to a bifurcated endportion 179 of'a block'181' mounted on the truck 142. Thus, the thrustof the connecting bar 151 is neutralized. A similar compensating bar 182is also providedl for the other power unit 174. The power devices 139and 17 l are rei tained by thecompensating bars 178 and 182,

respectively, in proper working relation to the truck 142 as the latterswivels. The operation of this construction is otherwise as describedfor that of the preceding figures.

The structure illustrated in Fig. `13 is veryr similar to that set forthin Figs. l to 7, .inclusive, inasmucli'as a pair of steam engines 183and 184 are employed rather than the gas engine l129 of Fig. 8. Thegeneral operation of this embodiment of my invention being substantiallyas described in said ligures, further description is deemed unnecessary.

Reference is here made to my co-peiiding divisionalv application, Seriallllo. 103,289, liled April 20, 1926.

While I have shown several forms of embodiments of my invention, for thepurpose of describing the same and illustrating` its principles ofconstruction and operation, it is j apparent that various changes andmodificacally interconnected, a supporting truck.

tlierefor, a body, and a plurality of power units supported byrsaid bodyand operatively associated with said traction units, respectively, saidpower units being bodily movable relative to said truck when saidtraction units move in a predetermined manner.

8. A truck having a pair of axles, a body, and a pair yof power unitsslidably mounted on said body and operatively associated with saidaxles, respectively, said power units being movable upon the swivelingof said truck.

t. A movable structure having aplurality of axles, a pair of power unitshaving a move-V ment different from said structure, and meansoperatively associating said power units and said axles, respectively,whereby power may be supplied to opposite portions of'said axles. f

5. A truck having a plurality of pairs of wheels, sets of side barsoperatively associating said wheels, a body, a power device mounted onsaid body, and means operatively associating said power device and oneset ot' said side bars, said device being movable upon the swiveling ofsaid truck.

6. A structure having an axle, a. driving crank carried by said-structure, a driven crank, and horizontal and vertical shaft sec.-Vtions extending between said cranks.

8. In combination, a body, a power device a slidably mounted thereon,and a truck carrying a crank disposed eccentrically of the swivelingpoint of saidtruck, said crank and said device being operativelyassociated.

9. A truck, a structure having a pivotal connection therewith, a shaftdisposed eccentrically of said pivotal` connection, and a power devicehaving a. predetermined bodily movement relative tov said shaftoperatively associated therewith. v

10. A movable structure, a body, means for pivotally mounting said bodyon said structure, a power device having a predetermined movementlongitudinally of f said body, a driven element mounted 0n saidstructure, and means operatively associating said device and saidelement, said device bei-ng movable only when said structure isy turnedwith respect thereto.

11. A truck having a driven cranka body mounted on said truck, and apower device carried by said body having an operative connection withsaid crank, said device being movable bodily when said truck swivelswith respect to said body.

12. A truck, a member, means for vpivotally interconnecting the same, adriven element, a power device mounted on said member, means foroperatively associating said device and said driven element, a tractionelement, and mechanism operatively associating said driven element andsaid traction element, said device being movable .bodily relative tosaid truck upon the swiveling thereof. p

13. A truck having a traction element provided with a crank, a secondcrank operatively associatedtherewith, a third crank having a drivingconnection with said lsecond-crank, and a power device operativelyassociated with said third crank, said device being movable when saidtruck isvmoved in a predetermined inanner.

14. A truck having a pair of axles, side bars interconnectingcorresponding opposite ends of said axles, a member pivotally mounted onsaid truck, a power device mounted on said member, and mechanism forinterconnecting said power device and one set of said side bars, saiddevice beingV bodily movable only when said truck swivels.

15. A truck having pairs of axles, the eppesite ends of which arerespectively interconmounted for slidable movement only when said vtruckswivels, and mea-ns for operatively connecting said power device withone of said sets of side bars.

16. A movable structure having a pair of axles, sets of side bars formechanically interconnecting corresponding opposite ends of said'yaxles, a power device, means for operatively associating said device andone of said sets of side bars, said means including avertical shaft, anda second power device having a connection lwith the other of said setsof side bars, said devices being so movable relative to said structureas to maintainvcorrect working conditions for various positions of saidstructure. f A

17. In combination, a car body, a. truck movable relative thereto, apair of axles, sets of side bars respectively connecting'l correspondingends of said axles, a pair of motors slidably mounted on said car body,and shafting interconnecting said motors and said sets of side bars,respectively, said motors being movable only upon the swiveling of saidtruck.-

18. In' combination, a sup-portingbody havy 19. A truck supportinghorizontal and ver-f `tical shaft sections, an axle positioned tobedriven by one of said shaft sections, a driving motor operativelyassociated with the other of said shaft sections, said motor beingbodily actuated when said truck is moved in a prede-v termined-manner. A

20. A truck having a pair of axles, side` bars respectively connectingcorresponding ends of said axles, shafts including horizontalV andvertical sections respectively connected to said side bars, anda pairofpower devices having a driving connection with said shafts respectively,said power devices being bodily movable upon the swiveling of saidtruck.

2l. A movable member, a bodily movable power device, and means wherebysaid power device may be actuated relatively of vsaid member upon amovement of the latter, said means comprising ari-element positionedinthe plane of mov'ement of said member.'

22. A movable structure, a bodily movable power device, and aneutralizing link operav tively associating the same and adaptedto'cause a movement of said device upon a move-l ment of said structure. Y-A 23. A swiveling structure, a longitudinally movable power device, anda member pivotally mounted on said device` and said structure, wherebysaid power device may be tion between said engines andsaid truck.

moved upon-the swiveling of said structure. 24. A movable power device,a swiveling truck, and a link adapted, to cause a bodily movement of'saiddevice upon the swiveling of said truck.

25; ln combination, av swiveling structure,

a bodily movable power device, and a compensating member, the endsofwhich are mounted f on said power Vdeviceand said structure, thel lattermounting'being-eccentric tothe swivelingpoint of said structure.

26. A truck having a swiveling pin, a body carrying a movable powerdevice, and a oompensating link having the ends thereof pivot-l c i 28.ln combination, a swiveling truck, a

slidable `engine,-a crankonthe truck, a con-. y necting rodextendingbetween said crank and f said engine, and neutralizing means forpre`serving the proper Vworking relation; between said enginer and said'truck' asthe latter swivels.

29. ln combination, a swiveling truck, a

body, twov reciprocating. engines movably; supported by said body, apair of crank shafts mountedy on said truck adapted to be actuated bysaid engines,y respectively, saidy engines having 90.D relation one withthe otheigand meansfor insuring a desired operating rela-'- 3,0.. Aswiveling truck, apair of reciprocating power devices having drivingconnection with said. truck and movable relative thereto,` t means formaintaining said devices in re-y lation one with the other, and meansfor main. taining the desired operating relation between said devicesand said truck when the latter.- swivels.` Y Y 3l. ln a device of theclass described, a truck having driving wheels, a vertical shaft, ahorizontal shaft, gearing for associating said shafts, a side bar foroperatively associating said driving wheels, and crank mechanismfoi-interconnecting said side bar and said horizontal shaft section.

32. ln combination, a car'body,`a supportf ing truck, power apparatushaving a drivingA connection with said truck slidably'mounted' on saidcar body, means for insuringa proper working relation between saidpowerV appa# ratus and said truck as the latter swivels,l and means forcontrolling thedirectionof 'operation of said powerapparatus.

33. In combination, a body, a supporting truck, power apparatus having adriving connection with said truck slidably mounted on said body, meansfor insuring a proper working relation between said power apparatus vandsaid truck as the latter swivels, and means carried by said powerapparatus for controlling the direction of operation thereof.

84. A truck having a pair of spaced wheels interconnected by a side bar,said bare having a recess, an apertured block slidably mounted mountedon said supporting member, said motor having a driving connection withsaid thereof.

swiveling structure, means for insuring a proper driving relationbetween said motor and` said swiveling structure as the latter turns,and flexible means for supplying energy to said motor.

36. In combination, a swiveling structure, a supporting structure, amotor slidably mounted on saidv supporting structure, said motor havinga driving connection with said swiveling structure, means for insuring aproper driving relationbetween said motor and said swiveling structureas the latter turns, and flexible piping operatively associated withsaid motor.

37. A swiveling structure, a supporting structure, a power devicebodilymovable on said supporting structure, a link having one endpivoted on saiddevice, and a casing constituting the quadrant of asphere aording a pivotal mounting for the end of said link,

said casing being mounted on said swiveling structure.

38'. A device of the class described comprising a car body, a truckhaving driving parts, a source of power attached to said car body, andmeansfor operatively associating said source of power and said drivingparts, saidmeans including connecting rods positioned to move in ahorizontal plane.

39. car body, a truck having driving parts, a source of power attachedto said car body, and means for operatively associating said source ofpower and said driving parts, said means-including connecting. rodspositioned to reciprocate in the swinging plane of the truck.

40. A swiveling structure, a supporting structure, power apparatusmovable on said supporting structure, a link havingy one end mounted onsaid power apparatus, and means for mounting-the other end of said linkon said swiveling structure, wherebyV the force thereof on saidswiveling structure may be absorbed equally for all operating conditions4l. In combination, a truck having a vertical driving shaft section, acar body mounted on said truck, and a power device for actuating saidshaft section somounted on said car body as to have a substantiallyylongitudinal movement upon the swiveling of said truck.

42. In combination, a truck, a body movably mounted thereon, drivingmeans mounted on said body,y and means constituting a drivingconnectionbetween saidfirst-mentioned means and saidl truck, said second-mentionedmeans being operative in substantially they swiveling plane ofv saidtruck.

43. In combination, a truck having driving parts, a car body, a sourceof power carried by said car body, means for operatively associatingsaid source of power and said driving parts including a rod operativesubstantially in the plane of movement of the truck, and means forinsuring a proper operative relation between said-truck and saidstantially the plane of the truck movement, and a compensating link alsooperative in the.

plane of movement of the truck.

45. A body constituting a movablesupport for a powerdevice, a supportingtruck for said body having driving parts including a crank, a connectinglink for operatively associating said power device and said crank, andAa compensating link for insuring a proper operating relation betweensaid power device and said crank, theflatter and said links," beingoperative in substantially the plane of movement of said truck. f v

46. A truck having driving parts, a body supported thereon and providinga movable support fora power device, a connecting rod extending betweensaid power device and said driving parts, and means for so mounting saidconnecting rod as to minimize the transfer of truck vibration by saidrod toV saidbody.

47. A supporting body having driving parts including interconnectedvertical and horizontal shaft sections, an axle operatively associatedwith one of said sections, a crank mounted on the other section foroperation in substantially the plane of'movement of the supporting body,a motor mounted for longitudinal movement relative to said supportingbody, and means also operative in said plane for operatively associating.said motor and said crank.

48. A supporting body having drivingV parts including interconnectedvertical and horizontal shaft sections, an axle operatively associatedwith one of said sections, a crank mounted on the other section foroperation in substantially the plane of movement of the supportingbody,a. motor mounted for llongitudinal movement relative to said support-`ing body, means also operative in said plane for operatively associatingsaid motor and said crank, and a compensating link extending betweensaid motor and said supporting body so as to insure a. desired operatingrela-y tion therebetween.

49. ln combination, movable power apparatus, a movable truck, and a linkoperative in substantially the plane of movement of said truck forinsuring the bodily movement of said apparatus upon a movement of saidtruck, said link being so mounted as to minimiZe the transfer ofvibration by said link from said truck to said motor.

50. In combination, a sWiveling truck having driving parts includingvertical andhorizontal shaft sections, a. body, a plurality of lmotorsmovably carried by said body, means for operatively associating' saidmotors and said driving parts, said motors being in 90 relation one Withthe other, and means for insuring a desired operating relation betweensaid motors and said truck, said means being positioned in one or moresubstantially hori- Zontal planes.

51. A truckhaving a pair of Wheels interconnected by a side bar providedwith a recess, an apertured block slidably mounted in said recess, meansfor resiliently centering said block, means for adjusting saidii'rstmentioned means, a driving sha-ft, and means for connecting saidshaft to said block.

52. A truck, a car body, a motor movably mounted on said body, saidtruck having driving parts, means for connecting said motor andsaiddriving parts positioned in substantially the plane of movement of saidtruck, means for insuring the desired operating relation between saidmotor andv said truck, and leXible means for supplying energy to saidmotor.

WILLIAM J. HAGMAN.

